Mining machine



Jan. 2, 1945. B. TOCCl-GUILBERT 2,366,222

MINING MACHINE Filed Jan. 5, 1942 5 sheets-sheet 1 INVENTOR. Bee/v: 7bcc/ dun. BERT A TTORNEYS.

Jan. 2, 1945. B. TOCCl-GUILBERT MINING MACHINE Filed Jan. 5, 1942 s Sh eet-Shet 2 A TTORNEYSL INVENTOR/ BikNE roam-damask?- Jan. 2, 1945.

B. TOCCl-GUILBERT' 2,366,222 I MINING MACHINE Filed Jan. S 1942 3 Sheds-Sheet 3 n INVENTOR. BE /v: Toccz- Guam-R1 Eva E 3% ATTORNEYS.

' the invention as definedlin the -claims 01101 Patentecl Jan. 2, 1945 TIii's-Iim-Jer Iti'on reIates to improvements int minhined machine for grading; olassi fiying and coneentrating: metal]; bear-mg. fines from anr-ifemns and other: ores; susnende'd in flowing A ongitha obj cts: of the invention: is' th'e' sim pli fi'o'a'ti on or the? structure and anr'ar-ig'eme of the vaniousr parts so that-they may becombined in: a compact machine;

Another object is the i-m novemento t? the means by which: the concentrates areremoved passesi- Another obfie'c't is the'"-' provision: OT" 82 maehin'e ofthis qharaeter; adapted to: he moved over "rough and rugged tenrain and havingmeans-for level mg the ore Concentrating mechanisms:

fiirtliei" @15 ect is themohilization' of" the re covery apparatus so that the machinemay" lie signed td worknatiiralplacen deposits. and 'tailfings resulting from hydraiilioing. and qredging operations. One great advantage is. that the machine canbe. taken tolthe material-l and the transportation of Tunprodnctiire material avoided;

But'it is-tozbeunderstood that the combination of units may be permanently installedash a mill to handle eomminuated ore= adapted to processingi according to thepresent invention.

In this specification and the accompanying drawings the invention isi diselosedi inl-its preierredlform Butitisto' beunderstoodsthatiit is notdimitedx torthis forms; because: it fmay be embodiedin modifications within the" spirit-of in thedescriptiona i l n IhthathreeisheetSdf:drawings: Fig-.li is aisidezzelevation ofiazminin'gr machine constructed: andi comhirrett in aecozrdanea with invention;,,

I: Fig) is'i a vievfi 01? the opposite sideof the ina olrine partial'lyin ventiealsection.

Fig.2 3: is a plain view oi the: hutch leveling frame pivoted withim the; main frame of the machine.

In; detain the: eonstnuction illustrated in the drawings, eef'ezening first ta 1 and. 24 comnigigiityz t The superstruetume pnises the: rectangular main frame A, having the side beams h,- Z and: the engh beams 3;}: (This main: frameis enosst braced beneath by? the X frame. 5 atta'chedlto theifour comers fior greater oomprises Uhy uprightsi 6;

L 8 and 9;; H1 H 1 fixed to the mainframe and suitablycross braved; The subfname W, l'3- is mounting'forjthemlassifyingqshaker 'screenmnialfln he conventional! rotanyatnommei-G is suitably mountedin: the: superstructure anddriven by themotor unit;- mheneatm tha platform E fonming: the top o1$ the:superstiamtare;- 3

" 'I 11 neceiving-v hoppevfF extendsoutwardty from theisuperstruoture anddsisupponteaby the stand ards fls, laiattachedito the' main frame- A? The inclined bottom I6 of the hopper delivers into the upper end of the trommel C. The semi cineu langnard G extenqs aronnd+ and beneath the lower-1 diameter of the panorama portio riof the tromrn el.

In e ppesntiiistahce theitrom'rnellhas thfee sections H iI, Jliot'yaryi'ngl periofiatibnsre v reman. 'rii'eguaw ar na-ea with the;

see-main 2'3, iilteisfaahed eeneatmhe-severjai sections of the trommelre spectively. v

These spouts discharge? their: rfespedtii/ely gradedffiiatefial ihtb" the classiffiiig shaker thefeaifizitothe distjesal caifcisitlie uawamea rfiaitenalisite sides. This particular spring mounting and drive imparts a highly resilient vibratory action to the classifying unit B. Three sections of coplanal screens of progressively larger mesh are set within the box 24 to form a submerged deck therein. These screen sections are vertically alined with the perforated sections of the trommel C above. I

The triangular hoppers 28, 29, 30 form the bottom of the box '24, beneath-their respective screen sections, such as 24. These hoppers have the gates 3!, 32, 33, pivoted thereon to control the volume ofmaterial flowing downward therefrom. These hoppers also have the side outlets 34, 35, 36, see Fig. 2, respectively discharging into the disposal trough 25', to drain off the excess water to prevent the hoppers overflowing.

The hutchesorother concentrating means P, Q, R, are located immediately below the discharge gates 3|, 32, 33 respectively. It is important that these hutches be maintained level and plumb, which is an important feature of this invention.

The hutch leveling frame shown in Fig. 3, consists of the sides 34, 35 and the ends 36, 31 properly joined to make a rigid structure. Each hutch has its separate pairs of transverse bars 38,

39-40, 4|, respectively, extending between the sides 34, 35. These sides are provided with the trunnions 44, 45, engaging the bearings mounted upon the side beams I, 2 of the main frame A. The end 36 of the leveling frame has the arm 46 pivoted to the threaded spindle 4! engaging abevel gear 48 on the bracket 49 mounted upon the adjacent end 4 of the main frame. The bevel gear is driven by a pinion on the end of the shaft 50 which has the handwheel 5| located in convenient reach on the side of the main frame. Turning the handwheel raises or lowers the end of the leveling frame for horizontal longitudinaladjustment of the leveling frame with respect to theground angle of the main frame A. If desired the trunnions 44, 45, may be made vertically adjustable on the main frame A, for lateral leveling 'of the hutch frame. In the present instance each hutch is independently leveled laterally.

The hutches P, Q, R, are alike in structure and it is deemed sufficient to describe only one in detail. The hutch has the boxlike upper portion 52, and the tapered lower portion 53, with the outlet gate 53' on the lower end, see Fig. 1. The hutch is suspended in the surrounding tilting frame 54 having the trunnions 55, 56 in axial alinement on the opposite sides thereof which engage their respective bearings on the side rails of the roller truck frame 51. The truck frame 51 has the flanged rollers, such as 51' traveling on the cross bars 364I, for instance. Means are provided for locking the hutches in leveled position.

The hutch has the upper tier 52 hinged at 59 to the upper edge of the hutch. A gasket is interposed between the top edge of the hutch and the lower edge of the tier and adapted to be compressed by the screw clamps, such as 60 to make a water tight joint at this point. The bottom of the tier 52 consists of-the screen 5|, located above the gasket level, see Fig. 1.

A series of compartments is formed above this screen by the bisecting partitions 62, 63, extending upwardly above the screen 6|. The front end of the tier overhangs at 64, to receive the discharge from the hopper such as 28 above. The bottom of this overhang 64 is about on the level with the top of the compartments formed by the partitions 62, 63.

These compartments are filled level with steel pellets 65, about /8 of one inch in diameter. The incoming material flows across the tops of these pellets and the fines suspended therein descend into the interstices between the pellets and into the sump formed by the lower portions of'the hutch 53. The discarded particles fiow into the inclined trough 66 overhanging the opposite side of the hutch, and are discharged into the disposal trough 25'.

The upper stratum of water in the hutch, below the screen forming the bottom of the tier, is pulsated in an upward direction only. This upsurge of water through the screen 5| lifts the lighter particles of detritis and facilitates the descent of the heavier fines into the hutch. Each hutch is provided with'a pulsator 6'! immediately below the screen, from which the incoming water through thehoses 68, 69 is intermittently discharged upwardly, without disturbing the quiescent water in the hutch below the pulsator. This quiescent stratum enables the fines, such as float gold, to precipitate without the levitating effect of agitation. For further particulars regarding this particular type of hutch see my copending application of even date bearing Serial Number 425,610. However, it is characteristic of concentrating hutches and jigs that they should be level to operate efficiently. It is an important feature of the present invention to provide such leveling means regardless of the particular form of concentrating means, such as the hutches illustrated;

In this disclosure the machine is mounted upon the conventional traction belt trucks S, S, at the rear end of the main frame A. The front end of the frame is supported upon the pivotal truck T, of similar type, to facilitate turning the machine, that is adapted to be towed by a tractor. To facilitate transportation, the trommel C, including its base frame, can be unbolted from the superstructure, to reduce the overhead clearance, when carried by a trailer or railway gondola.

The combined machine on the main frame A, can be mounted upon a barge in dredger practice, by omitting the traction trucks S-T. Or it may be mounted upon a permanent foundation for millpractice, wherein the material is brought to the mill.

This invention operates substantially as follows: The material is elevated and dumped into the hopper F, in accordance with common drag line practice; which also scrapes a path for the advancement of the machine. It is desirable to include a tractor bulldozer in the outfit to prepare the way for the dragline unit.

The material gravitates from the hopper F, into the upper end of the inclined trommel C, which usuall contains helical vanes to retard the movement of the smaller particles ofmaterial while permitting the larger rocks and pebbles to roll through the trommel onto the conventionalendless belt stacker U for disposal behind the ed sections H, I, J, assisted by a liberal flow of water through the hopper F and the trommel C.

The finer particles graded by the section H of the trommel descend into the guard G and are discharged through the spout 2| into the first which supports the pellets.

freed of values or other matter accumulated section of the shaker screen unit B, which has the finest mesh. From thence the selected material passes into the tier 52 of the first hutch P.

The material graded by the trommel sections I, J take a similar path through the spouts 22,

23, the progressively sized meshes of the classifying screen unit B, and into the tiers of the hutches Q, R, respectively. The peculiar longithe trommel C, through the shaker screen unit B and into and across the pellet level of theseveral hutches'P, Q, B. This water may be impounded in ponds for reuse for'economy, with the further advantage that colloidal or float gold or other values in suspension may be saved in their repassage through the machine. s

Periodically the machine is shut down for the cleanup. The flexible hoses 68, 69 are uncoupled, and the hutch is rolled laterally on'its mobile truck on the cross bars, such as 36-, to the side of the main frame A. The removable tray V, see dotted lines, is placed in position on the side beam l. The tier 52, is swung upward on the hinges 59, and the contents of the tier, ,including the pellets 65, is dumped into a screen laid across the topof the tray V, the mesh of The concentrates impounded in the in- The function of the trommel and the shaker are preliminary to the work of the hutches,,and they may be chosen or modified in accordance with the nature of the material being processed.

Broadly stated the present invention resides in.

the combination of elements, someof which are old. The novelcontributions relate particularly to the mobile frame with hutch levelingmeans. Having thus described this invention, what is claimed and is:

1.,A mobile mining machine including amain frame having a superstructure thereon, traction means supporting said frame; a trommel assem- 1 bly mounted upon said superstructure; a stacker pivoted on said main frame in operative relation to the discharge from said trommel; an ore classifier below and fed from saidtrommel; a

leveling frame pivotally mounted on said main frame; a truck movable on said leveling. frame;

ore concentratingmeans mounted below said classifier on said truck on pivots whose axes are transverse to the axes of the leveling frame pivots; and means for locking said concentrating means in adjusted position.

2. A mobile mining machine including a main frame; traction means supporting said frame; a leveling frame pivotally mountedon said, main frame; a truck transversely movable on said leveling frame; pivots on said truck with their axes transverse to the axes of the pivots supporting said leveling frame; and ore separating hutche mounted on the pivots on said truck.

tersticesbetween the pellets flow from the tray into a tub beneath for recovery. This enables the cleaning of themeshes of the screen 6|. The pellets are also trated is known in the art as the Symons screen,

which. is covered bya number of patents, and is j included only as a suitable unit in the present combination.

Other forms of classifiers are available as substitutes to perform the same function.

3. A mobile mining machine including a main 7 frame; tractionmeans supportingsaid-frame; a

a truck movable on said tracks; and ore separating hutches mounted onsaid truck in such a manner that said hutches can beleveled with respect to the plane of said main frame.

4. A mobile mining machine including a main frame; traction meanssupporting said frame; a

superstructure on said main frame; a trommel assembly mounted uponsaid superstructure; a 1

stacker pivoted upon said main frame in operative relation to the dischargeendof said trommel; an

desired tosecure by Letters Patent 

